2175 K Street NW is prominently located on Washington Circle and serves as a gateway to the city’s commercial corridor. No longer functional and efficient for modern workplace needs, this 30-year-old building faced two options: recycle the structure into a new building, or raze it entirely. We transformed 2175 K Street into a new, sustainable state-of-the-art facility — while 75% of the building was occupied by tenants. An additional challenge was that 70% of the existing facade needed to remain in place.
Our team created a Class A signature building through blending new and old systems. We increased the building by three floors to add 33,000 gross square feet. The new facades are a unitized glass and metal curtain wall system. A state-of-the-art solar system screens the existing facade and provides passive solar shading to the new facade; while simultaneously knitting the entire building together.
The building was expanded vertically, adding three new floors totaling 33,000 SF. The redevelopment program also included a new façade design, new main lobby, new core elevators, new building systems and core restrooms. The design solutions utilize long-span steel construction for the new floors, eliminating interior columns. Carbon fiber strengthens the existing structure. The new facades have exterior aluminum louvers providing passive solar shielding. These louvers continue over the existing façade to unite the new and old, reinforcing that the whole has been revived. The outcome illustrates the importance of utilizing our built environment, and has been a case study for the complex expansion and repositioning of urban buildings while they remain occupied. The European Union’s American consulate exhibits new, sustainable technologies built upon the recycling of an antiquated structure.